HttpBasicAuthentication.java

/*
 * Copyright (c) 2012. Piraso Alvin R. de Leon. All Rights Reserved.
 *
 * See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The Piraso licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.piraso.client.net;

import org.apache.commons.lang.Validate;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.AuthCache;
import org.apache.http.client.HttpClient;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.AbstractHttpClient;
import org.apache.http.impl.client.BasicAuthCache;
import org.apache.http.protocol.HttpContext;

/**
 * HTTP basic authentication
 */
public class HttpBasicAuthentication extends AbstractHttpAuthentication {

    private AbstractHttpClient httpClient;

    public HttpBasicAuthentication(HttpClient client, HttpContext context) {
        super(client, context);
        Validate.isTrue(AbstractHttpClient.class.isInstance(client), "client must be an instance of AbstractHttpClient.");

        httpClient = (AbstractHttpClient) client;
    }

    public void authenticate() {
        validate();

        UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(userName, password);

        httpClient.getCredentialsProvider().setCredentials(new AuthScope(targetHost.getHostName(), targetHost.getPort()), credentials);

        // Create AuthCache instance
        AuthCache authCache = new BasicAuthCache();

        // Generate BASIC scheme object and add it to the local auth cache
        BasicScheme basicAuth = new BasicScheme();
        authCache.put(targetHost, basicAuth);

        context.setAttribute(ClientContext.AUTH_CACHE, authCache);
    }
}